Bow sight



Oct. 19, 1965 M. w. LARSON 3,212,190

BOW SIGHT Filed Dec. 15, 1962 2 Sheets-Sheet 1 INVENTOR Mar/0W W Larson ATTORNEY5 Oct. 19, 1965 M. w. LARSON 3,212,190

BOW SIGHT Filed Dec. 13, 1962 2 Sheets-Sheet 2 VIIIIIIIIII; [0/ mm BY W ATTORNEYS United States Patent 3,212,190 BOW SIGHT Marlow W. Larson, 595 41st St., South Ogden, Utah Filed Dec. 13, 1962, Ser. No. 244,401 1 Claim. (Cl. 33--46) This invention relates generally to a sighting device to be used by archers, and more specifically to a bow attachment adapted to assist the archer in holding the bow upright and sighting the arrow against the target or the like.

A primary object of the present invention is to provide a bow sight which can be mounted directly in the archers line of vision and used without interrupting the normal sequence of shooting steps.

Another object is to provide a bow sight which is highly accurate in use and one which may be conveniently adjusted for use by different archers.

Another object is to provide a bow sight which can be readily attached to existing bows or installed on newly manufactured bows.

A further object of the invention is to provide a bow sight which is simple in construction and economical to manufacture.

These and other objects will be apparent from the following description when taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a front elevational view illustrating a bow sight constructed in accordance with the teachings of the present invention;

FIG. 2 is a vertical section taken on the line 22 of FIG. 1;

FIG. 3 is a horizontal section taken on the line 33 of FIG. 1;

FIG. 4 is a front elevation illustrating a slightly modified form of the invention;

FIG. 5 is a vertical section taken on the line 5-5 of FIG. 4;

FIG. 6 is a front elevation illustrating another form of the invention;

FIG. 7 is a sectional view taken on the line 77 of FIG. 6;

FIG. 8 is a front elevation illustrating another embodiment of the invention;

FIG. 9 is a vertical view taken on line 9-9 of FIG. 8;

FIG. 10 is a front elevation illustrating still another embodiment of the invention;

FIG. 11 is a side elevation of the embodiment shown in FIG. 10;

FIG. 12 is a fragmentary section taken on the line 1212 of FIG. 11;

FIG. 13 is a fragmentary section taken on the line 13-13 of FIG. 11; and

FIG. 14 is a sectional view taken on the line 1414 of FIG. 12.

Referring now in more detail to the drawings, the bow sight is generally indicated by the numeral 1 in FIG. 1 and comprises frame 3 defining an area which is sub stantially tear-shaped in configuration. A transverse strut 5 is secured at its ends to the opposed inner walls of frame 3, as by welding and defines a substantially semicircular sector with the lower portion of the frame. This sector is in turn bisected by a vertical strut 7 which is attached to the center of strut 5 and extends downwardly to the frame 3.

A pair of parallel pins 9 are secured at the one side of frame 3 and project outwardly for mounting the device on a bow shaft 11 or the like.

At the upper end of the frame 3, a cap 13 is mounted, as by screws 15. Cap 13 is dented to provide a pair of opposed sockets 17 adapted to receive the opposite ends of a pivot pin 19. A pendulum element 21 is secured at 3,212,195 Patented Oct. 19, 1965 its upper end to pivot pin 19 and extends downwardly therefrom through an opening 23 in the frame to terminate at a point adjacent the intersection of struts 5 and 7. Pendulum 21 is, however, mounted for pivotal movement in the direction indicated by the arrows 25 and opening 23 is large enough to accommodate such movement.

The bow sight 1 is mounted immediately above the position at which the archer grips the shaft, and, when the bow shaft 11 assumes a true vertical position, the pendulum 21 and struts 5 and 7 form, in effect, a cross-hair sight disposed directly in the archers normal line of vision. Thus, the device serves the dual function of indicating the correct disposition of the bow and providing an accurate sighting means.

A similar sight is illustrated in FIG. 4. In this embodiment, however, the frame 33 is round and a single pedestal 35 is employed as opposed to the intersecting struts 5 and 7 of FIG. 1. The pedestal 35 may be tapered as indicated and serves to mount a diamond-shaped sighting 36 at its upper end. The uppermost point of the diamond is disposed in a substantially central position in frame 33. A pendulum 37 is pivotally mounted in a notch 39 on the upper surface of frame 33, by means of a transverse pivot pin 41. A cap element 40, mounted by screws 42, serves to hold the assembly in position and pendulum 37 extends downwardly through a hole 43 in the frame. The pendulum tapers to a sharp point which terminates immediately above the upper point of element 36 when the bow is truly vertical. Thus, with the diamond-shaped element 36, the pendulum 37 indicates the attitude of the bow shaft and also provides a sight through which the archer can spot his target.

The device of FIGS. 6 and 7 comprises a flat base plate 51 adapted to be secured by any suitable means on the rear face of the bow shaft. A bracket 53 is secured by screws 55 or the like to the upper portion of base plate 51. The lower end of bracket 53 is spaced from the base plate, and a pivot pin 57 is disposed therebetween with its opposite ends received in aligned bores 59 and 61 formed therein. Pendulum 63 extends downwardly from the pivot pin 57 and is mounted for movement in a plane parallel to the plane of the base plane. The accuracy of the pendulum indicator is achieved by a sighting member 65. This member is secured to the base plate 51 at a point spaced below the bracket 53, as by screws 67. Ears 69 at the opposite ends of member 65 serve to limit the range of movement of the pendulum 63 and the lower edge of the member is shaped to provide a centrally disposed sighting point 71 adapted to be aligned with the lower portion of pendulum 63 when the bow is in true vertical position.

The embodiments of FIGS. 8 and 9 are similar to the one described, but, in this instance, a pivot pin 81 is disposed between the base plate 83 and the cover 85, the opposite ends of the pin being received in opposed recesses therein. A centrally disposed sighting member 87 is provided at the lower end of the base plate for cooperation with a pendulum 89 suspended from pivot pin 81. The lower end of the cover member 85 is provided with an opening 91 so that sighting member 87 and the pendulum 89 can be viewed. The opening 91 may be provided with a window 93 of transparent plastic material or the like.

In the embodiment of FIGS. 10-14, a base plate 101 is mounted on the front face of the bow shaft 103. A vertical track member 105 is disposed in overlying relation with respect to base plate 101, and is spaced therefrom by spacers 107 at either end thereof. Screws 109 serve to hold the parts in assembled relation on the shaft 103. A carrier assembly 111 is mounted on track 105 and includes a block 113 with a vertically disposed recess 115 in its inner surface to receiver track 105. A

cover plate 117 is fastened by screws 118 to secure the block 113 on track 105 for sliding movement therealong. Recess 115 is extended at one side thereof to provide a pocket 119. A spring 121 is received in pocket 119 and bears against the side of track 105 through the agency of a friction pad 123 which arcts as a brake. Accordingly, the carrier 111 can be moved to the desired position of vertical adjustment and will not slip in use.

The upper surface of thet block 113 is provided with a transverse recess 125 adapted to slidably receive a mounting bar 127. A bowed spring element 129 is mounted at one side of the recess and bears against one side edge of mounting bar 127 to act as a brake. A cover plate 131 secured by screws 133 serves to hold the parts in assembled relation.

A sight is mounted on the outer end of bar 127 and may be moved toward or away from the bow shaft by sliding the bar horizontally in the recess. In this instance, the sight is identical to the one shown in FIGS. 1 through 3 and will not be described again. The same numerals, however, have been employed to indicate the corresponding identical elements.

While several embodiments of the invention have been disclosed, it is to be understood that these are presented by way of example only. Numerous other changes and modifications may be made in the construction and design without departing from the spirit of the invention or the scope of the annexed claim.

I claim:

A bow sight adapted for attachment on a conventional archery bow shaft, comprising: a rigid unitary enclosing frame adapted to be disposed directly adjacent to and at one side of said bow shaft and to define an open sighting area in the archers line of sight adjacent said bow shaft; attachment means extending from one side of said frame to rigidly secure the same at one side of said bow shaft immediately above the area thereof which is normally gripped by the archer; a transverse strut disposed on said frame substantially centrally across the sighting area defined by said frame; a vertical strut extending upwardly from the bottom of said frame with its upper end intersecting said transverse strut to substantially bisect the portion of said sighting area disposed below said transverse strut, said transverse and vertical struts thereby defining the horizontal and lower arms of a cross-hair assembly; pivotal attachment means mounted centrally on the upper portion of said frame; a pendulum arm pivotally suspended from said attachment means at a point directly above the point of intersection of said transverse and vertical struts, said pendulum arm normally extending downward to intersect said transverse strut at said point of intersection and to thereby define the fourth arm of said cross-hair when said bow shaft is disposed in an upright position; and adjustment means interposed between said attachment means and said frame for varying the position of the frame in a plane perpendicular to the line of sight with respect to said how shaft.

References Cited by the Examiner UNITED STATES PATENTS 466,599 1/92 Carver 33-53 X 1,171,310 2/16 Bisbee 33-53 X 2,554,133 5/51 Von Arx 33-207 X 2,834,118 5/58 Jackson 33-207 X 2,875,522 3/59 Merrill et a1. 33-46 2,987,820 6/61 Butts 33-46 2,998,652 9/61 Zielinski 33-46 3,013,336 12/61 Pennington 33-46 3,084,442 4/63 Jacobson et a1. 33-46 FOREIGN PATENTS 139,978 4/03 Germany.

99,540 6/23 Switzerland.

197,619 8/38 Switzerland.

201,195 2/39 Switzerland.

ROBERT B. HULL, Primary Examiner. 

